Question

the result of an experiment to stretch a spring are shown in the table use the result to plot an extension load graph mark the limit of proportionality and state the value of the load at the point

Answer 1

Answer:

Use hooke 's law, : F = kx

k = f/x = 1/ slope of graph

Line passes from : ( 1 , 0.4) (2, 0.8)

slope = 0.8 - 0.4/2 -1 = 0.4

k = 1/0.4 = 2.5

Extension = Final length - initial length

x = 16.4 - 15= 1.4

Using F = kx

F = 2.5 * 1.4

F = 3.5 N